From b81278c14258c81c2ca3307491e74c504e84d26b Mon Sep 17 00:00:00 2001
From: Santhosh Thottingal
Date: Sun, 7 Jun 2009 11:12:09 +0530
Subject: Soundex Module
---
silpa/modules/soundex/soundex.py | 128 +++++++++++++++++++++++++++++++++++++++
1 file changed, 128 insertions(+)
create mode 100644 silpa/modules/soundex/soundex.py
(limited to 'silpa/modules/soundex/soundex.py')
diff --git a/silpa/modules/soundex/soundex.py b/silpa/modules/soundex/soundex.py
new file mode 100644
index 0000000..3325dd1
--- /dev/null
+++ b/silpa/modules/soundex/soundex.py
@@ -0,0 +1,128 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# Copyright 2009 Santhosh Thottingal
+# http://www.smc.org.in
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Library General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# If you find any bugs or have any suggestions email: santhosh.thottingal@gmail.com
+# URL: http://www.smc.org.in
+
+import charmap
+import sys
+import re
+from common import *
+class Soundex(SilpaModule):
+ def soundexDigit(self,char):
+ index=0
+ cm=charmap.charmap
+ lang= charmap.language(char)
+ try:
+ if lang == "en_US":
+ return cm["soundex_en"][cm[lang].index(char)]
+ else:
+ return cm["soundex"][cm[lang].index(char)]
+ except:
+ '''In case of any exception- Mostly because of character not found in charmap'''
+ return 0
+ return None
+
+ def soundex(self,name, len=5, indic=False):
+ """ soundex module conforming to Knuth's algorithm
+ implementation 2000-12-24 by Gregory Jorgensen
+ public domain
+ """
+ sndx =''
+ fc = ''
+ # translate alpha chars in name to soundex digits
+ for c in name.lower():
+ if not fc: fc = c # remember first letter
+ d = str(self.soundexDigit(c))
+ # duplicate consecutive soundex digits are skipped
+ if not sndx or (d != sndx[-1]):
+ sndx += d
+
+ # replace first digit with first alpha character
+ if not indic: sndx = fc + sndx[1:]
+
+ # remove all 0s from the soundex code
+ sndx = sndx.replace('0','')
+
+ # return soundex code padded to len characters
+ return (sndx + (len * '0'))[:len]
+
+ def compare(self,string1, string2, indic=True):
+ if indic:
+ if charmap.charCompare( string1[0] , string2[0]) >=0 :
+ return self.soundex(string1, indic=True)==self.soundex(string2, indic=True)
+ else:
+ return self.soundex(string1, indic=False)==self.soundex(string2, indic=False)
+
+ def process(self,form):
+ response = """
+
Soundex
+
'Sounds like' search across Indian Languages.
+
+
Enter the text for searching in the below text area. You can enter the text in say, Hindi and search a Malayalam word in that. If the pronunciation of the search key is similar to any word in the text, it will be highlighted.
+ All Indian Languages and English are supported. More about soundex